Instrument



F. G. SMITH.

SIGNAUNG INSTRUMENT.

APPLICATION FILED JULY 12. 19:8.

Patented Dec. 9, 1919.

UNITED STATES PATENT oEEioE.

FREDERICK GEORGE SMITH. 0F SARNIA, ONTARIO, CANADA.

' SIGNALING INSTRUMENT.

Application filed July 12. 1918.

To all whom it may concern Be it known that I. FREDERICK G. SMITH, of the city of Sarnia. county of Lambton, Province of Ontario, Canada, have invented certain new and useful Im )rovements in Signaling Instruments. of which the following is a specification.

This invention relates to electrical apparatus for teaching the signaling systems commonly used commercially or in warfare, and my object is to devise apparatus which will give either visual signals, the tap signals of the Morse system, or the buzzing signals of the wireless apparatus. A further object is to arrange the apparatus so that it may be used for the actual transmission of signals by Hertzian waves over limited distances, and also so that the tapper or buzzer signals may be listened to telephonically.

My invention consists in the novel arrangement of the apparatus as illustrated in the accompanyingdrawing, which is a diagrammatical view of the apparatus.

In this drawing 1 is an electric circuit provided with a kev 2, by means of which it may be closed or opened. Connected with this circuit is the circuit 3 of the lamp or visual signal device 4. 5 is the circuit of the buzzer, of which 6 is the winding. The

circuits 3 and 5 are ear. connected with the circuit 1 and with switch contacts 7 and 8. The buzzer is of ordinary construction, the circuit being ordinarily made or broken between the vibrator 9 and the vibrator post 10. The vibrator will vibrate between tl e stops 11.

There is also provided by means of the wire 12 an electrical connection between the winding 6 and acontact 13. By means of a switch 14 it is evident that either the visual signal device 4 or the buzzing device 5 may be brought into the circuit with the key 2, so that by the operations of thekey either visible signals may be given or the Specification of Letters Patent.

Patented Dec. 9, 1919.

Serial No. 244.618.

In order that signals may be heard by telephone. I provide the buzzer with a secondary winding 15, which secondary winding is connected with the terminals 16 and 17 to which a telephone. circuit 18 may be connected. As it is desirable to be able to vary the intensityof the signals in the telephone circuit, I connect one end of the secondary winding by means of the Wire 19 to the terminal 17 and tap the winding at dilierent points in its length by means of the wires 20 and provide a switch :21 by means of which an' one of the wires 20 may be connected with the terminal 16.

It is also desirable to arrange the device to act as a sender of wireless signals and I therefore connect a terminal with the vibrator post 10. This may be conveniently done by connecting the post by means of the wire 23 with the circuit 12. To the terminal 24 is connected awire 25 connected with the buzzer winding 6. The terminal 22 is intended for connection with an aerial :26, while the terminal 24 is connected with the ground 27 when aerial signals are to be sent.

It will be understood, of course, that the parts of the apparatus may be constructed of any well known devices, and the secondary winding 15 may be readily altered to any buzzer of ordinary type.

From the above description it will be seen that I have devised signaling apparatus which will satisfactorily carry out the objects of my invention as set out in the preamble of this specification.

Vhat I claim as my invention is 1. In signaling apparatus, the combination of an electriccircuit; a key for making and breaking said circuit; a visual signal 'device; a buzzer device; a switch and connections whereby the key controlled circuit may be completed at will either through the visual signal device, through the vibrator of the buzzer, or direct through the coil of the buzzer; a terminal for an aerial connected with the vibrator post; and a terminal for a ground connection connected to the winding of the buzzer coil.

Q. In signaling apparatus, the combination of an electric circuit; a key for making and breaking said circuit; a visual signal device; a buzzer device, a Switch and connections whereby the key controlled circuit may be completed at will either through the visual signal device, through the vibrator of the buzzer, or direct through the coil of the buzzer; a secondary winding on the buzzer coil; and terminals for telephone connections connected with said secondary Winding.

3. In signaling apparatus, the combination of an electric circuit; a key for making and breaking said circuit; a Visual signal device; a buzzer device; a switch and connections whereby the key controlled circuit may be completed at will either through the visual signal device, through the vibrator of the buzzer, or direct through the coil of the buzzer; a secondary winding on the buzzer coil; terminals for telephone connections connected with said secondary winding; and means for cutting out more or less of the secondary winding from the telephone circuit.

4;. In signaling apparatus, the combination of an electric circuit; a key for making and breaking said circuit; a visual signal device; a buzzer device; a switch and connections whereby either the key controlled circuit may be completed at will either through the visual signal device, through the vibrator of the buzzer, or direct through the coil of the buzzer; a terminal for an aerial connected with the vibrator; a terminal for a ground connection C0111 nected to the Winding of the buzzer coil; a secondary winding on the buzzer coil; and terminals for telephone connections connected with said secondary Winding.

5. In signaling apparatus, the combination of an electric circuit; a key for making and breaking said circuit; a visual signal device; buzzer and tapper mechanism and connections therefor; means for bringing either the visual signal device, the buzzer connections or the tapper connections into the key controlled circuit; an aerial connected with the vibrator post; and a ground connection connected to the winding of the buzzer coil.

6. In signaling apparatus, the combination of an electric circuit; a. key for making and breaking said circuit; a visual signal device; buzzer and tapper mechanism and connections therefor; means for bringing either the visual signal device, the buzzer connections or the tapper connections into the key controlled circuit; a secondary Winding on the buzzer coil; and terminals for telephone connections connected with said secondary winding.

Signed at Sarnia Ontario, this 25 day of June, 1918.

FREDERICK GEORGE SMITH. 

